Energy of a capacitor | Circuits | Physics | Khan Academy

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  • Опубліковано 16 вер 2013
  • This video explains the potential of a capacitor and how they function in a circuit. By David Santo Pietro. Created by David SantoPietro.
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КОМЕНТАРІ • 204

  • @ItsaStringThing
    @ItsaStringThing 9 років тому +196

    It's like a combination of high school physics and Blues Clues

  • @nnkk7742
    @nnkk7742 8 років тому +128

    Who is this amazing individual?

  • @vandanarawat7392
    @vandanarawat7392 3 роки тому +49

    People like you make us fall in love with the subject. I don't understand why teachers complicate the simple concepts!
    I can't thank you enough for these videos sir.

  • @garylai5174
    @garylai5174 7 років тому +13

    This dude deserves a nobel prize in teaching

  • @rithvikshindihatti1215
    @rithvikshindihatti1215 8 років тому +75

    The way he made us remember those formulas!!!!HAHAHA

    • @user-sw4uq5ix6h
      @user-sw4uq5ix6h 4 місяці тому

      Do you know what the background music is?

  • @michaeladama7788
    @michaeladama7788 10 років тому +67

    A phenomenal video as someone who hates physics, I was apprehensive about studying capacitance. But this video made an seemingly difficult topic, very easy. The beauty of this video is it's simplicity!!! Great job David Santo Pietro. Thanks Khan Academy!!!!

    • @user-sw4uq5ix6h
      @user-sw4uq5ix6h 4 місяці тому

      @@RigidMan Do you know what the background music is used in this video?

  • @Bugra0528
    @Bugra0528 7 років тому +9

    This video is PERFECT!
    Thanks a lot!
    Very detailed and precise.

  • @ethanpowell2376
    @ethanpowell2376 8 років тому +93

    oooooooooooooooooooooooooooooooooooooooooooooooooooo hahahahaha those kids :D

    • @zoalerix
      @zoalerix 5 років тому +6

      ngl It's kinda annoying

  • @popprahchaya1192
    @popprahchaya1192 9 років тому +7

    Great Vid! Easy to follow! Probably the best i've see so far

  • @dimaabed9768
    @dimaabed9768 7 років тому +3

    This is very amusing yet very helpful and simple to understand. Thanks a lot!

  • @bakaiser0111
    @bakaiser0111 6 років тому +2

    Bro.. These videos are SO good. With the real life examples and super thorough explanations and tips. I appreciate this a lot. Physics is not as scary now... Thank you so much!! I had to go on the youtube page for these vids from the khan website just to click like!

  • @adibabrar1702
    @adibabrar1702 4 роки тому +2

    This channel is my education

  • @shengjiashen4651
    @shengjiashen4651 2 роки тому +1

    THIS IS THE MOST INTERESTING PHYSICS VIDEO I'VE EVER SEEN IN MY LIFE! GREAT GREAT JOB!!!!!!

  • @salieudanso4668
    @salieudanso4668 9 років тому +4

    The best teaching videos. Thanks professor, I admire this great system of teaching experience.

  • @adrianaharisya1257
    @adrianaharisya1257 4 роки тому

    THANK YOU SO MUCH!! I had troubles remembering what my lecturer taught me and reading textbook could not give me visual explanation. Thank you for this video!!

  • @nilucheh
    @nilucheh 4 роки тому +1

    man!the way you teach us,is just..perfect...wish our teachers had this ability too.

  • @117117nobody
    @117117nobody 9 років тому +6

    you just got to love these videos

  • @amanjaved3095
    @amanjaved3095 3 роки тому +1

    How so concise! This perfect video answered the questions I had. 😊

  • @Toujimbwa
    @Toujimbwa 10 років тому +2

    This was so good! I understood so well!

  • @karhukivi
    @karhukivi 4 роки тому

    Good explanation and the only video that explains the 1/2 average factor, - thanks!

  • @dominicestebanrice7460
    @dominicestebanrice7460 7 місяців тому

    Educational content on YT doesn't get any better than this. The Khan India guy and now this guy! Amazing.

  • @darshalbarapatre1364
    @darshalbarapatre1364 3 роки тому +1

    I m able to visualize each and every concept clearly.. thanks bro

  • @voteforsocks45632
    @voteforsocks45632 4 роки тому

    Excellent teaching. I could barely understand this stuff until I came across these videos.

  • @hunterjiang5894
    @hunterjiang5894 2 роки тому

    Clearest video explanation of this concept ever!

  • @dvscrobe
    @dvscrobe 6 років тому +1

    My Physics II textbook doesn't explain well where the 1/2 comes from. This covered it perfectly!

  • @darondasavage4140
    @darondasavage4140 3 роки тому

    I love the visuals and the music. Great explanation.

  • @mahamatissa6483
    @mahamatissa6483 7 років тому +3

    informative video keep it up ..TQ

  • @premsingh2261
    @premsingh2261 Рік тому +1

    The Best Explanation 👌 thanks

  • @joegrant4245
    @joegrant4245 6 років тому

    Thank You. You explained in 6 min what my Physics teacher took a week to explain.

  • @mohammadalshawabkeh5791
    @mohammadalshawabkeh5791 6 років тому

    Oooh!
    Nice tutorial!

  • @garylai5174
    @garylai5174 7 років тому +12

    DAT sound effects tho

  • @scienceandphilo
    @scienceandphilo 7 років тому +1

    Very informative. Keep this good work up

  • @ghgghghg2464
    @ghgghghg2464 10 років тому

    very helpful & nice presentation
    , thanks

  • @infinitygaming4831
    @infinitygaming4831 7 років тому +10

    best physics teacher in the world

  • @moushmisrimayi1445
    @moushmisrimayi1445 3 роки тому

    Loved it completely

  • @heyilikeair8521
    @heyilikeair8521 7 місяців тому

    I was so confused by the half. Thank you so much.

  • @PatrickPereiraVieira04
    @PatrickPereiraVieira04 7 років тому +2

    Quality video. Do you have one on capacitors charging with constant current?

  • @neuva_2117
    @neuva_2117 4 роки тому

    you rocked it in this video!!

  • @nasimaakther8069
    @nasimaakther8069 2 роки тому

    love this my all trouble has gone away.

  • @funwithehsan7827
    @funwithehsan7827 3 роки тому

    I didn't like physics before watching your videos...........u r an amazing individual..........u r a real teacher ❤️

  • @samarsurya9703
    @samarsurya9703 7 років тому +3

    i love these videos...

  • @johnjericdeluna4686
    @johnjericdeluna4686 3 роки тому

    Very well said! ❤️

  • @parveenpayal6554
    @parveenpayal6554 7 років тому +2

    awesome..😍

  • @dilipbordoloi2641
    @dilipbordoloi2641 7 років тому +4

    I want lessons of Ac by David Santo Pietro with the music before end of Dec plz

  • @eshapant8621
    @eshapant8621 7 років тому +19

    I'm liking this for the C pun

  • @mohammedhussein5806
    @mohammedhussein5806 8 років тому +15

    finally , i understood how capacitors work. Thank you so much for this helpful lessons

    • @nghialetrong7039
      @nghialetrong7039 8 років тому +1

      2 the parallel capacitor is fully charged then the charge. then take the power out, the charge in two copies will look like?

    • @Aziz-wu2iy
      @Aziz-wu2iy 2 роки тому

      @@nghialetrong7039 yes

  • @antaresrepublic
    @antaresrepublic 3 роки тому

    Thankks i understand better now

  • @christiangutierrez7193
    @christiangutierrez7193 6 років тому +2

    that background music is mesmerizing

  • @prakashbudthapa9975
    @prakashbudthapa9975 5 років тому

    u r amazing , man .. keep going

  • @nasiiraomar5425
    @nasiiraomar5425 Місяць тому

    This man is a legend🎉❤

  • @juanfeeer
    @juanfeeer 7 років тому +23

    I think this is like relationships. Opposites attract, then little by little the capacitance (dopamine/love/attraction) is less every time you charge (hang) the capacitor (the relationship).

  • @ananyagoel7591
    @ananyagoel7591 4 роки тому +5

    Those kids tho😂😂

  • @rafehn
    @rafehn 6 років тому

    Best explanation on EARTH 🌏

  • @simozy4475
    @simozy4475 3 роки тому

    thank you very much

  • @nghialetrong7039
    @nghialetrong7039 8 років тому +1

    very good.

  • @classmateeducare4682
    @classmateeducare4682 7 років тому

    OMG superb.

  • @location4898
    @location4898 9 років тому +1

    very good..

  • @zenapsgas
    @zenapsgas 6 років тому

    Good shit!

  • @thulsikatte5895
    @thulsikatte5895 Рік тому

    Thank you so much .....

  • @kainatexpertdesigner41
    @kainatexpertdesigner41 3 роки тому +1

    you're amazing teacher keep teaching in this way up May ALLAH ALMIGHTY bless you

  • @ramkrishnab1
    @ramkrishnab1 7 років тому +2

    what happens when to energy variation when dielectrics used

  • @xenialxenagogue5978
    @xenialxenagogue5978 3 роки тому +1

    My heart just broke wen he didn't know integration! I was excited to see if he can show that with this much ease😂.. awesome video sir thanks a lot

  • @thefenerbahcesk4156
    @thefenerbahcesk4156 5 років тому

    Studying for the MCAT right now. I wish I had learned this in High School or Undergrad.

  • @REviewOFF07
    @REviewOFF07 2 роки тому

    Uff awesome ❤

  • @georgemartin1432
    @georgemartin1432 7 років тому +7

    Thank you - great video. Quick question: can someone please explain how the voltages were calculated in the final section? Adding up the voltages along one route gives 10.5V but the PD of the supply is 10V? Thanks

    • @euanseaman1774
      @euanseaman1774 3 роки тому +2

      The voltages were assumed, as though they were given in a question, he didn't calculate them, rather he just made up values for each so the formula would work.

  • @qaipak1
    @qaipak1 9 років тому

    Brilliant.

  • @surbhin7451
    @surbhin7451 4 роки тому

    BEAUTIS!!

  • @ishwargowda
    @ishwargowda 5 років тому

    Love it

  • @bharath9951
    @bharath9951 9 років тому +3

    Helped me a lot 🆒🆒🆒🆒🆒🆒🆒🆒

  • @ahmeddildar4250
    @ahmeddildar4250 3 роки тому

    Thanks 🙏 a lot

  • @KN0Wit
    @KN0Wit 3 роки тому +1

    where does other 1/2 energy goes off? if only 1/2 energy stored in capacitor .

  • @HariKrishnan-vp5ed
    @HariKrishnan-vp5ed 3 роки тому

    thanks a lot

  • @kashanbashdar3440
    @kashanbashdar3440 Рік тому

    THANK YOU THANK YOU THANK YOU

  • @frogsuper5604
    @frogsuper5604 3 роки тому

    Love you so much

  • @rithvighachandrasekaran6960
    @rithvighachandrasekaran6960 3 роки тому

    I SEE, this is a goldmine

  • @emankhalid3948
    @emankhalid3948 4 роки тому

    Hats off

  • @himsoni7112
    @himsoni7112 3 роки тому

    Best Science Communicator

  • @asgharchakra534
    @asgharchakra534 5 років тому

    awwwwwsome

  • @AHalo2019
    @AHalo2019 6 місяців тому

    Thanks ❤

  • @boopathimanikandan1497
    @boopathimanikandan1497 5 років тому +1

    for example if we take plates made up of copper, after a capacitor charged, will plates of capacitor turns to Cu+(positively charged plate) and Cu-(negatively charged plate) or capacitor plates remains same as Cu?

  • @TheOnePath570
    @TheOnePath570 9 років тому

    nice one

  • @leenmaher2641
    @leenmaher2641 5 років тому

    AMAZING video
    The ohhhhhhh was funny lol

  • @Deadlyaztec27
    @Deadlyaztec27 5 років тому

    This man is a genius.

  • @dilnargheyret1465
    @dilnargheyret1465 5 років тому +5

    great video! but for the last example, shouldn't the voltages be 10V (1+9) according to the batteries? But the voltage in that circuit was actually 10.5V (6.25+3+1.25)?

    • @user-mw2sk7pi5x
      @user-mw2sk7pi5x 11 місяців тому

      That what I was thinking! A simple typo, he was off by 0.5V, but the concept was still delivered very well!

  • @sajidrafique375
    @sajidrafique375 Рік тому

    If you integrate Vdq from 0 to Q and replace dq by Cdv , you get 1/2CV^2 and then 1/2QV follows also

  • @armandrachelle9188
    @armandrachelle9188 2 роки тому

    Dude !!

  • @pvp9897
    @pvp9897 9 років тому +10

    Very Well Work On the Education, Keep Going On ,, Never Stop ....................

    • @nghialetrong7039
      @nghialetrong7039 8 років тому +1

      2 the parallel capacitor is fully charged then the charge. then take the power out, the charge in two copies will look like?

  • @cnureks6667
    @cnureks6667 3 роки тому

    Sir please do video to understand parallel plate capacitor

  • @franciscosanchez9406
    @franciscosanchez9406 6 років тому

    Does the capacitor pushes the amps that the load needs or more then then it requires?

  • @pritamsuna3481
    @pritamsuna3481 7 років тому +4

    woohoo.....best

  • @nghialetrong7039
    @nghialetrong7039 8 років тому +2

    2 the parallel capacitor is fully charged then the charge. then take the power out, the charge in two copies will look like?

  • @waazup2
    @waazup2 10 років тому

    unintentionally hilarious vid

  • @jnjnknpn
    @jnjnknpn 5 років тому

    I love the bgm

  • @KalaniPananwala
    @KalaniPananwala 6 років тому +1

    this is very helpful :) and interesting to hear. it was like listening to a rap song. :D

  • @ashishkumarsharma1323
    @ashishkumarsharma1323 5 років тому

    well, in one of my books while reading about capacitance. There was a topic that when an uncharged conductor is brought near a charged conductor, it leads to a decrease in Potential of the charged conductor which decreases the Capacitance.
    But in some other book, I read that Capacitance doesn't depend upon q and V.
    What's the correct explanation?

  • @nasimiqbal2078
    @nasimiqbal2078 6 років тому

    👌

  • @AHalo2019
    @AHalo2019 6 місяців тому

    ❤❤

  • @aryanzee3072
    @aryanzee3072 3 роки тому +2

    During charging ,Is all the charges moved through the potential of V volt ?Thus we write energy giving to capacitor is QV.

    • @gamingwithbayezid4182
      @gamingwithbayezid4182 2 роки тому

      I have the same problem .Please answer this question.🙏🙏🙏🙏

  • @yash1152
    @yash1152 2 роки тому

    4:41 technique to remember the formula

  • @jsathibabu8822
    @jsathibabu8822 3 роки тому +1

    Sir does the charge travel through battery during charging process if it does that energy stored in capacitor will be increase if it does not do that how charging process done PLEASE EXPLAIN